Home / 7,121,990.88-9,831,753.36-4,065,614.64

Finding the Fourth Proportional to 7,121,990.88, 9,831,753.36 and 4,065,614.64

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Solution

The fourth proportional to 7,121,990.88, 9,831,753.36 and 4,065,614.64 is: 5,612,492.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,990.88 : 9,831,753.36 = 4,065,614.64 : x
  2. Step 2: Convert to fraction form
    7,121,990.88/9,831,753.36 = 4,065,614.64/x
  3. Step 3: Cross multiply
    7,121,990.88x = 9,831,753.36 × 4,065,614.64
  4. Step 4: Simplify right side
    7,121,990.88x = 39,972,120,397,285.19
  5. Step 5: Solve for x
    x = 39,972,120,397,285.19/7,121,990.88
  6. Step 6: Final answer
    x = 5,612,492.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.